Space/Science — HabitableZone

Space/Science » in reply to re: Energy limitations for private spaceflight

re:Oh come on!

Earth-bound transportation moves billions of tons per year; an UNBELIEVABLY robust launch industry might, in the far distant future, move one millionth as much mass. You're right, it takes a lot more energy to get stuff to orbit, so I suppose it's possible that spacelaunch might someday represent as much as 1/100,000th of the worl'd energy-for-moving-mass budget. Is this worth worrying about? No.

Furthermore, in on the overall scheme of things, fuel costs are almost insignificant when it comes to spacelaunch. Fuel costs could increase by a factor of 10x, to no effect whatsoever. If fuel costs increased 100x, then that might create a bit of a pinch -- but we'd just switch to using liquid Hydrogen, which many rockets already use (the Space Shuttle, the Ariane 5, et cetera), or other non-hydrocarbon fuels. No problem.

Please, I'm the resident rabid environmentalist on this board, but I do try to keep myself educated. If you're going to post about these kinds of things, either know what you're talking about, or ask *questions* to help yourself figure it out, rather than making ridiculous declarations.

Cheers,

Nathan

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